如果您收到了UI，present the new fields to the user and obtain their submission. Then post to this module with createcontinue and the relevant fields set, and repeat step 4.

如果您收到了REDIRECT，direct the user to the redirecttarget and wait for the return to createreturnurl. Then post to this module with createcontinue and any fields passed to the return URL, and repeat step 4.

如果您收到了RESTART，that means the authentication worked but we don't have a linked user account. You might treat this as UI or as FAIL.

Return URL for third-party authentication flows, must be absolute. Either this or createcontinue is required.

Upon receiving a REDIRECT response, you will typically open a browser or web view to the specified redirecttarget URL for a third-party authentication flow. When that completes, the third party will send the browser or web view to this URL. You should extract any query or POST parameters from the URL and pass them as a createcontinue request to this API module.